Lubricating-pump.



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LUBBICATINE PUMP.

(Applicatian flied Hay 26. 1900.)

(lo lndel.)

UNITED STATES PATENT OFFICE. w

JOHNF. MCCANNAOF CHICAGO,` ILLINOIS, AssICNoR, To THE JOHN F. MCCANNACOMPANY, OFCIIICAGO, ILLINOIS, A CORPORATION voF ILLINOIS.

LUBRICATINe-PUMP lSPECIL `I(.A'J?O1\|' forming part of Letters PatentNo. 691,478, dated January 21, 1902. V A

' j Original application liled January 6, 1900. Serial No. 545. Dividedand this application filed May 26. 190. Serial No. 18.054. (No model.) a

TQ ctl'wlwm it may cone-ern: l

Beit known that I, JOHN F. MCCANNA, a

` resident of Chicago, in the county of Cook and pressure into thecylinder of a steam-engine or any other machinery to be lubricated, andrelates strictly to the construction of the pump, being a division of myapplication Se? rial No. 545, led January 6, 1,900, for improvements inlubricating-pumps for locomotive-engines.

While'the present invention was designed,

primarily, to be employed in'connection with the cup and system wherebyI arrange to lubricate locomotive-engines, it will be understood thatthe pump with which the present .application is concerned can beutilized upon a stationary engine or elsewhere. Referring now to theaccompanying sheet 'of drawings, in which the same reference charactersare vused to designate identicall parts in all the views, Figure 1 is aplan View of-the'vpump. Fig. 2 is a central sectional 'View on the lineA IA' of'Fig. 1,. Figs. 3 and4 are sectional views on the lines B B ofFig. l and C C of Fig. 2,7' respectively; and Fig. 5 is a detail insection on 'the line D D of Fig. 3.

For the purpose of applying. my invention to locomotiveLengines, inwhich the reservoirmustneeessarily be in the' cab, where it is visibleand accessible to the engineer and in,

which the pumps are` preferably near the point at which the oil orlubricant is to be applied, I separate the reservoirfromthe pumps,mounting the reservoir in the cab, where it is accessible to theengineer, and the pumps in some convenient position adjacent to theair-brake steam-cylinder and the steam-chests k.of'the cylinders for thedriving-wheels and any other parts that may be desired to bejllu'-bricated. V l The framework 6 of the pump is of a gen- I erallyrectangular box-like construction,

and the various sides thereof are preferably formed integral witheachother, except that so the end-7 and the top 8 are preferably formedof apiece of sheet metalmaking a cover that is hinged to the main casingat 9 and which is conveniently secured. in place by the set- Y screwlO,passing through the aperture in the top part 8 and into a lug 11, formedon the barrel 12 of the pump." A block 13 extends from one side of theVcasing to the other and has a Channel 14 passing therethrough, one endof which is'closed by the screw-threaded blockvl, while the other endhas the screwthreaded end 1G'of the supply-pipe, which 'end is'conncctedto the main portion of the pipe by the elbow 17. .It will beapparent that this construction enables me to make connections with thesupply-pipe on either side of the pump, as may be necessary in placingthem on different-sides of the engine. f

The barrel 12 of the pump isapieeeof some peculiar shape, as will beseen by reference to the drawings; A recess 18, formed in its lowerside, 'commmunicates with the passage 19, centrally located andleadingulp from the i channel 14., and the valve 20, preferably of theordinary ball Construction, tes as' a check-valve. A -pair of aperturas21 lead from the recess 18 to the channel 22, which has the plunger orpiston 23 of the pump re'- ciprocating therein. An aperture 24 leadsvfrom the channel 22 into a recess 25, formed in the piece 26, which issecured to the other parts by the means to be described. A pair of'apertures 27vlead from the neem 25 into the ehanne1'28, into theuppetend of which.

is secured the screw-threaded lower end of the discharge-pipe. Acheck-va1ve 29, placed in the recess 25, eoperates with the aperture.24. It will be apparent from the description that as the piston 23 isreciprocated.the oil will be drawn from the reservoir throughthe whenceit is delivered'into the steam-chest or other part to be lubricated. Thepieces 12 respectively, which are apertured for the passage of the bolts32, which arescrewed into feed-pipe and forced .into the fdellvery-pipe,

the blockv 13, as shown in F-ig. 3, and the nutsy 33 upon the upper endsof the bolts'Y32-when tightened serve to secure all these membersclosely together to form the pump. The stu E- ing-box in the end of thepiece 12 is formed in the customary manner with the packing 34, the nut36, and the gland 35. For reciprocating this piston .23 at the desiredrate of speed I provide the shaft 37, `which is mounted' in the bearings38, formed in the abutments 39, extending from the sides and end of thecasing 6. This shaft is preferably reduced eccentrically, as at 40, andhas coperating therewith the pieces or bearing-blocks 41, which are heldtogether by the elongated rectangular aperture inthe yoke 42, which ispivoted on the rod or shaft 43, passing through the casin g, at thelower side thereof. For convenience of assembling the parts the yoke 42is preferably constructed so that one side thereof is formed by thedetachable piece 42, which is secured to the body of the yoke by thescrews 44. The outerscrew-thread'ed end of the piston 23 passes throughthe aperture 45, formed in the upper end of the yoke, and the lug or nut`4G secured on the piston on the l innerside ofthe yoke, and a lnut 47and alocknut 43- serve to form the necessary adjustable abutments bywhich the length of the throw ofthe piston cau be accurately regulated,as it will be apparent that the closer the nut 47 is brought to theabutment 46 the greater the portion of the swing of the yoke 42 thatwill be utilized, and consequently the greater the rate of feed. Bysetting the nut 47 suiiiciently far away the pump can be throwncompletely out of action, if desired. The shaft 37 is provided with theclutch mechanism 49, which may be of any desired form,but which ispreferably like that shown in connection with my Patent No. (348,628,dated May 1, 1900, and by means of this clutch mechanism 49 thevibration of the arm 50, which is preferably secured integral with adisk 51, which is rotatably lnounted on the reduced outer end 52 of theshaft 37, will be transmitted to said shaft-i. e., as the arm 50 isVibrated this movement in one direction Will be imparted to the shaft37, so as to give it an intermittent rotary movement in that direction.The swinging movement of the arm 50 ma-y be secured by attaching it inany of the customary mechanisms to any reclprocating part of the engine.

Vhle I have shown my invention as embodied in the form which I atpresent consider best adapted to carry out its purposes, it will beunderstood that it is capable ot :noditications and that I do not desireto be limited in the interpretation of the following claims,

except as may be necessitated by the state of the art. n

What I claim as new', and desire to secure by Letters Patent of theUnited States, vis- 1. In'a device of the class described, thecombination with the supply-pipe, ot' the dischargefpipe, pumpconnections betweenv said pipes comprising the channel 14 with eitherend of which the supply-pipe is adapted to be connected, a piston-barreland a piston therein and-means for reciprocating said piston, passagesleading from said channel 14 to the discharge-pipe through saidpistonsbarrel,

vandvalves located in said passages on either side of Vthepiston-barrel, substantially as and for the purpose described.

2. In a device of the class described, the combination ot' the casinghaving the block 13 therein having the channel 14 extendingtherethrough, and the passage 19 leading from said channel to the edgeof the block, with the piece 12 having the valve-aperture 18 therein andthe piston-barrel 22, and the ears 30, and the member 26 connected tothe discharge-pipe and having the valve-apertu re 25 therein, the ears31 thereon, and the bolts 32 and the nuts 33 adapted to rigidly connectsaid members, substantially as and for the purpose described.

3. In a device of the class described, the combination of the shaft 37and means for rotating the same, with the yoke pivotally mountedadjacent thereto, and having the rectangular aperture therein throughwhich said shaf t passes, the blocks 41 surrounding au eccentric portionof said shaft and confined in said aperture, and the piston connected tosaid yoke, substantially as and for the purpose described.

4. In a device of the class described, the combination of the shaft 37and means for rotating the same, with the yoke pivotally mountedadjacent thereto,V and having the rectangular aperture therein throughwhich said shaft passes, the blocks 41 surrounding an eccentric portionof said shaft and confined in said aperture, and the piston connected tosaid yoke, the connections between said piston andl said yoke comprisingthe screwthreaded end ot' the piston having the nuts thereon to formadjustable abutments for said yoke, substantially as and for the purposedescribed.' 1

p 'JOHN F. Mcoarnm.

Witnesses:

Louisn E. SERAGE,

H yrrln O. HALvoRsoN.

IOO

